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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 26 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 118771
Prefixes after maximum aggregation: 76082
Unique aggregates announced to Internet: 57476
Total ASes present in the Internet Routing Table: 14383
Origin-only ASes present in the Internet Routing Table: 12501
Origin ASes announcing only one prefix: 5615
Transit ASes present in the Internet Routing Table: 1882
Transit-only ASes present in the Internet Routing Table: 65
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 27
Number of addresses announced to Internet: 1152464461
Equivalent to 68 /8s, 177 /16s and 54 /24s
Percentage of available address space announced: 31.1
Percentage of allocated address space announced: 57.0
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54997
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20094
Total APNIC prefixes after maximum aggregation: 11896
Prefixes being announced from the APNIC address blocks: 18629
Unique aggregates announced from the APNIC address blocks: 11447
APNIC Region origin ASes present in the Internet Routing Table: 1698
APNIC Region origin ASes announcing only one prefix: 511
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 104502944
Equivalent to 6 /8s, 58 /16s and 150 /24s
Percentage of available APNIC address space announced: 68.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 72967
Total ARIN prefixes after maximum aggregation: 46758
Prefixes being announced from the ARIN address blocks: 51917
Unique aggregates announced from the ARIN address blocks: 16049
ARIN Region origin ASes present in the Internet Routing Table: 8025
ARIN Region origin ASes announcing only one prefix: 2690
ARIN Region transit ASes present in the Internet Routing Table: 745
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185520064
Equivalent to 11 /8s, 14 /16s and 207 /24s
Percentage of available ARIN address space announced: 69.1
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 20509
Total RIPE prefixes after maximum aggregation: 15251
Prefixes being announced from the RIPE address blocks: 17141
Unique aggregates announced from the RIPE address blocks: 11480
RIPE Region origin ASes present in the Internet Routing Table: 4276
RIPE Region origin ASes announcing only one prefix: 2334
RIPE Region transit ASes present in the Internet Routing Table: 771
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 122470340
Equivalent to 7 /8s, 76 /16s and 191 /24s
Percentage of available RIPE address space announced: 81.1
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5191
Total LACNIC prefixes after maximum aggregation: 2177
Prefixes being announced from the LACNIC address blocks: 4528
Unique aggregates announced from the LACNIC address blocks: 2987
LACNIC Region origin ASes present in the Internet Routing Table: 321
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 11908096
Equivalent to 0 /8s, 181 /16s and 180 /24s
Percentage of available LACNIC address space announced: 71.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1127 1185 831 Telstra Pty Ltd
703 401 367 313 UUNET
2907 392 1976 368 SINET Japan
2764 335 340 305 connect.com.au pty ltd
17557 329 24 129 Pakistan Telecom
4134 298 2505 97 Data Communications Bureau
7474 296 276 206 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
4755 255 135 76 Videsh Sanchar Nigam Ltd. Aut
3786 237 772 204 DACOM Corporation
17676 229 3557 28 XTAGE CORPORATION
9583 200 33 12 Satyam Infoway Ltd.,
4766 197 2074 146 Korea Internet Exchange for "
9443 182 57 77 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 147 9 13 World Net & Services Co., Ltd
9768 130 384 64 Korea Telecom
4716 129 737 123 TTnet
7713 128 46 15 PT TELEKOMUNIKASI INDONESIA
4713 123 1068 103 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1603 9029 1178 UUNET Technologies, Inc.
7018 1419 7058 949 AT&T
3908 1188 1619 503 Supernet, Inc.
1239 953 3126 670 Sprint
852 672 1108 439 Telus Advanced Communications
1 666 8076 432 GENUITY
7843 592 399 225 Adelphia Corp.
7046 551 809 253 UUNET Technologies, Inc.
4323 527 472 168 Time Warner Communications, I
209 523 2103 332 Qwest
690 521 76 326 Merit Network
7066 489 204 253 Virginia Polytechnic Institut
6197 470 560 106 BellSouth Network Solutions,
18566 447 113 7 Covad Communications
705 422 131 179 UUNET Technologies, Inc.
2386 422 467 228 AT&T Data Communications Serv
6198 421 185 198 BellSouth Network Solutions,
4355 409 313 116 EarthLink, Inc.
3549 393 708 292 Global Crossing
15290 393 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 809 2306 672 UUNET - Commercial IP service
3215 312 787 173 France Telecom Transpac
3301 311 1141 297 TeliaNet Sweden
3320 255 1995 228 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
5515 214 783 175 Sonera Solution Autonomous Sy
1257 207 400 196 SWIPnet Swedish IP Network
786 177 1873 177 The JANET IP Service
719 170 306 130 LANLINK autonomous system
5400 160 70 97 BT Ignite European Backbone
8708 157 42 147 Romania Data Systems S.A.
20858 145 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 130 1302 117 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 121 174 112 COLT Internet - International
3246 119 378 116 Song Networks
3269 112 753 62 TELECOM ITALIA
3233 104 10 8 RNC - Romanian Natioanal R&D
5511 104 193 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 313 98 101 ImpSat
7303 228 36 52 Telecom Argentina Stet-France
8151 207 317 113 UniNet S.A. de C.V.
6503 158 207 108 AVANTEL, S.A.
11172 156 81 32 Servicios Alestra S.A de C.V
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 112 3 41 Red Universitaria Nacional
10620 102 6 31 TVCABLE BOGOTA
6147 76 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 73 27 38 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
11992 69 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 39 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
15034 59 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1188 685 Supernet, Inc.
7018 1419 470 AT&T
18566 447 440 Covad Communications
7843 592 367 Adelphia Corp.
6197 470 364 BellSouth Network Solutions,
4323 527 359 Time Warner Communications, I
7046 551 298 UUNET Technologies, Inc.
11492 299 298 Cable One
1221 1127 296 Telstra Pty Ltd
4355 409 293 EarthLink, Inc.
6347 372 293 SAVVIS Communications Corpora
1239 953 283 Sprint
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
4814 261 246 China Telecom (Group)
705 422 243 UUNET Technologies, Inc.
376 345 241 Reseau Interordinateurs Scien
7066 489 236 Virginia Polytechnic Institut
1 666 234 GENUITY
852 672 233 Telus Advanced Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
178.54.59.0/24 7018 AT&T
188.1.0.0/16 680 DFN-IP service G-WiN
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:15 /9:3 /10:8 /11:12 /12:44
/13:90 /14:240 /15:440 /16:7250 /17:1556 /18:2831
/19:8036 /20:7851 /21:5642 /22:8541 /23:10179 /24:65324
/25:160 /26:174 /27:92 /28:77 /29:64 /30:98
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 764 1188 Supernet, Inc.
7018 518 1419 AT&T
702 498 809 UUNET - Commercial IP service
690 470 521 Merit Network
18566 442 447 Covad Communications
701 421 1603 UUNET Technologies, Inc.
7066 388 489 Virginia Polytechnic Institut
7843 363 592 Adelphia Corp.
1239 353 953 Sprint
6197 344 470 BellSouth Network Solutions,
6198 335 421 BellSouth Network Solutions,
6140 301 313 ImpSat
11492 298 299 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 252 551 UUNET Technologies, Inc.
3215 240 312 France Telecom Transpac
20115 230 351 Charter Communications
4355 228 409 EarthLink, Inc.
7303 227 228 Telecom Argentina Stet-France
2386 225 422 AT&T Data Communications Serv
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:633 13:1 15:6 17:3 20:7 24:790
25:1 32:82 34:1 38:38 40:19 44:1
55:1 57:16 61:469 62:482 63:1881 64:1360
65:1817 66:1385 67:204 68:229 69:37 80:318
81:80 128:75 129:188 130:22 131:72 132:11
133:4 134:130 135:7 136:178 137:112 138:97
139:68 140:123 141:103 142:95 143:44 144:73
145:14 146:254 147:85 148:245 149:76 150:42
151:94 152:258 153:41 154:7 155:104 156:49
157:56 158:120 159:130 160:29 161:56 162:134
163:82 164:263 165:136 166:85 167:302 168:396
169:56 170:179 171:7 178:1 192:5300 193:2403
194:1960 195:907 196:440 198:3564 199:3014 200:2834
202:3634 203:4970 204:2990 205:2117 206:2267 207:2403
208:2660 209:2733 210:680 211:327 212:931 213:711
214:19 215:22 216:3187 217:559 218:70 219:16
220:42
End of report
